Spherical drum shells



FIG. 1 is a front view of spherical drum shells showing my new design.

FIG. 2 is a rear view thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a front view of a second embodiment of the spherical drum shells.

FIG. 5 is a rear view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a front view of a third embodiment of the spherical drum shells.

FIG. 8 is a rear view thereof; and,

FIG. 9 is a top view thereof.

The broken lines showing the foot-pedal-operated baton, securing rim, drumhead, and support stand are included for the purposes of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for spherical drum shells, as shown and described. 